/*
 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * Contributors:
 *     bstefanescu
 */
package org.nuxeo.gwt.habyt.app.client.widgets;

import org.nuxeo.gwt.habyt.app.client.Action;
import org.nuxeo.gwt.habyt.app.client.Application;
import org.nuxeo.gwt.habyt.templates.client.WidgetFactory;
import org.nuxeo.gwt.habyt.templates.client.bindings.Helper;

import com.google.gwt.dom.client.Element;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Widget;

/**
 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
 * 
 */
public class LinkFactory extends WidgetFactory {

    public LinkFactory() {
        super("link");
    }

    @Override
    public Widget createWidget(Element element) {
        String value = element.getInnerText();
        if (value.length() == 0) {
            value = "!Missing Label!";
        }
        final Anchor w = new Anchor(value);
        String v = Helper.getAttribute(element, "action");
        if (v != null) {
            final Action<?> action = Application.get().getAction(v);
            action.setTarget(Helper.getAttribute(element, "target"));
            action.setOutcome(Helper.getAttribute(element, "outcome"));
            action.setConfirm(Helper.getAttribute(element, "confirm"));
            action.setMessage(Helper.getAttribute(element, "message"));
            w.addClickHandler(new ClickHandler() {
                @Override
                public void onClick(ClickEvent event) {
                    Widget p = w.getParent();
                    if (p instanceof MenuBar) {
                        ((MenuBar) p).select(w);
                    }
                    action.execute(w);
                }
            });
        } else {
            String href = Helper.getAttribute(element, "href");
            if (href != null) {
                w.setHref(href);
            }
            w.setTarget(Helper.getAttribute(element, "target"));
        }
        return w;
    }
}
